Create a custom STL allocator

Although we are going to use our own containers, it may be necessary to count 
with an STL allocator in order to be able to both trace memory usage and 
allocate data in a shared buffer. The allocator will a kind of adapter of 
QPoolAllocator, used internally.

Information about STL allocators customization:
http://www.codeguru.com/cpp/cpp/cpp_mfc/stl/article.php/c4079/Allocators-STL.htm

Original issue reported on code.google.com by Lince3D@gmail.com on 14 May 2014 at 3:28

indiantarget / quimeraengine

Create a custom STL allocator #602